Rechargeable battery checker



FIG. 1 is a top left front perspective view of a rechargeable battery checker showing my new design;

FIG. 2 is a left side elevational view thereof, the right side being a mirror image thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a rechargeable battery checker, as shown and described. 